GPS speedometer head up display.
GPS shows accurate speed regardless of tire or wheel size.
1) Head Up Display - Project the speed of the car to the windshield. or directly display.
2) Calculate and display the driving time and distance
3) Easy Setup - Plug & Play - Powered by cigarette lighter socket, no special wiring required.
4) Compatible with all cars and trucks. It uses GPS signal, no wiring from car speed signal.
5) MPH or KM/H Display - Push button to set it.
6) Use the brightness sensor to automatically adjust the brightness during the day and night driving.
7) Car operation speed display, green speed display, good for your eyes.
8) Overspeed Warning - Alarm mute function Overspeed Warning: 3 seconds alarm beep sound and flashing display alerts drivers with overspeed alert.